Gearing for propellers.



W. A. HALL. Gmmm FOR PBOPELLERS. APP-LIOATIOH FILED MAR. 29 1909. RENEWED JAN. 10, 1910.

Patented Nov; 8, 1910.

WILLIAM A. HALL, 0]? LOS ANGELES, CALIFORN IA, ASSIGNOR, BY MESNE ASSIGN- MENTS, TO AMERICAN AERIAL COMMERCIAL COMPANY, OF LOS ANGELES, CALI- FORNIA, A CORPORATION OF ARIZONA TERRITORY.

GEARING FOR PROPELLERS.

' Specification of Letters Patent.

Patented Nov 8, 1910.

. Application filed March 29, 1909, Serial No. 486,604. Renewed January 10, 1910. Serial No. 537,350.

To all whom it may concern:

Be it known that I, WILLIAM A. HALL, a citizen of the United States, residing atLos Angeles, in the county of Los Angeles and State of California, have invented a new and useful Gearing for Propellers, of which the following is a specification.

This invention relates to propeller gearing adapted for driving and controlling air shlp propellers and the like, and the main object of the invention is to provide means for' adjusting the propeller so that it will rotate in any plane above or below the center line of the driving shaft or at either side thereof and to permit such adjustment while the propeller is in operation.

Further objects are to provide adevice of the character described which is of simple and com act construction having few parts and dura le in use.

The accompanying drawing illustrates the invention and referring thereto: Fi re 1 is a longitudinal, vertical, sectiona view through the invention. Fig. 2 is an enlarged section on line aF-w Fig. 1. Fig. 3 is a plan view of the device at the joint. Fig. 4 is a perspective view, in detail, of one of the handles of a controlling wheel. 5 is 'a section on line an -m Fig. 1.

1 designates the propeller'hub having any desired number or form of blades 2, the hub bein mounted on a shaft 3 journaled in a bearing 4 which is formed as art of a yoke 5. The yoke 5 has an extended portion G-on one side and together with the extension 6 is formed as a ortion ofa hollow] sphere. The yoke 5 is plvoted to the ends of a shaft 7 7 wh1ch extends "diametrically of the spherical yoke 5, and the extension 6 is provided with asegment gear 8 which embraces an arc of about 180 and is concentric with the shaft 7. A supporting yoke 9 which is also formed as a portion 0 a hollow sphere supports the shaft 7, the latter being also diametrically disposed with relation to the supporting yoke 9. The yoke 9 is mounted rigidly on the end of an intermediate tube 10.

Mounted on the shaft 7 is an intermediate idle bevel gear 11 which meshes with a bevel ear 12 which is rigid on the shaft 3, and a so meshes with a bevel gear 13 which is 'd on a shaft 14, the latter being ocated within t e tube 10 and mounted to rotate therein. Outside of the interme diate tube 10 is an outer tube 15, and attached to the rear end thereof is. a bevel gear 16 which meshes with the segment gear '8. 17 is a journal for the outer tube 15. 18 is a journal in which the other end of the intermediate tube 10is mounted, and 19 is a wheel rigidly mounted on the tube 10 for revolubly adjusting the same. The end of the outer tube 15 is enlarged, and rigidly secured thereon is the hub 20 of adjusting wheel 21 the rim of which has a V-shaped rib 22. A series of bolts 23 are slidably mounted radially of the adjusting. wheel and have collars 24 against which sprlngs 25 press tending to move the bolts 23 inwardly. The inner ends of the bolts 23 lie in radial holes 26 in the outer tube 15. Radial holes27 are formed in the intermediate tube 10 and are adapted to receive the inner ends of bolts 23 when the latter are permitted to enter.

A handle 28 is formed on the outer end of each bolt 23 and as clearly shown in Fig. the inner end of each handle has two diametrical grooves 29, 30, the groove 29 being deeper than the groove 30. When the handle 28 is so turned that the groove 30 rests upon the V-rib 22 the associated bolt 23 is held out of engagement with a hole 27 in the intermediate tube 10, while when the handle 28 is turned so that the deep groove 29 rests on the V-rib 22 the associated bolt then lies in a hole 27. When all of the bolts are disengaged from the intermediate tube 27 by rotating the wheel 21 the outer tube 15 may be turned, which through the medium of bevel gear 16 and segment gear 8 will swing the yoke 5' on the shaft 7 and move the shaft 3 into 'angularity with the axis of the driving shaft 14. If the wheel 19 is held stationary to hold the intermediate tube 10 and yoke 9 stationary with the shaft 7 inv a I vertical position, and the wheel 21 is then turned to adjust the yoke 5, it is obvious that the shaft 3 will be adjusted in a horizontal plane and that by turning the wheel 19 one-quarter around so that the shaft 7 is horizontal and then adjusting the yoke 5 the latter will be adjusted in a vertical plane. Obviously the plane of. adjustment of the shaft 3 may be produced at any point within a complete-circle which may be secured by adjusting the wheel 19. The adjustabllity. of the shaft 7 .is always in a vertical plane, that is, assuming the driving shaft ll to be arranged in a horizontal position, and the ad ustment of the shaft 3 is always in a plane at right angles to the shaft 7. There-v.

fore as the shaft 7 is adjustable through a complete circle itis possible to adjust the shaft 3 into any desired angle of inclination in any direction with respect to the driving shaft 14 and that during all such adjustments the 'ears always remain in mesh and the operation of the propeller is uninterrupted. When the desired 'angularity of the shaft 3 with respect to the shaft 7 has been secured by means of the wheel 21 any one of sliding bolt 31 is employed which is adapted to engage in anyone of'a series of notches 32 formed in the hub of the wheel 19.

What I claim is v '1. Two yokes pivoted together, a driven shaft in one yoke,-a bevel gear on said shaft, an idle gearcarried by one of said yokes meshing with the first gear, a driving shaft journaled in the other yoke, a bevelgear on the driving shaft meshing with' the idle gear, a segmentgear on the yoke which carries the driven shaft, an intermediate tube attached to the other yoke, an outer tube, and a gear on the outer tube meshing with the segment ear.

2. Two yo es pivoted together, a driven shaft in one yoke, a bevel gear on said shaft, an'idle gear carried by one of said yokes meshing with the first gear, a driving shaft journaled in the other yoke, a bevel gear on the driving shaft meshing with @the idle gear, a e ent gear on the yoke which carries the riven shaft, an intermediate tube attached to theother oke, an outer tube, a gear on the outer tube meshing with the se 'ment gear, a wheel on theintermediate and a wheel on the outer tube. 3. ;-Two yokes pivoted together, a driven shaft inon'e yoke, a bevel gear on said shaft,

an idle gear carried one of said yokes meshing with the first gear, a driving shaft journaled in the other yoke, a bevel gear attached to the other oke, an outer tube, a gear on the outer tu e-meshing with the segment gear, a wheel on the intermediate tu e, a wheel on the outer tube, and means for detachably locking the latter wheel to the-intermediate tube.

4. Two 'yokes' pivoted together, a driven shaft in one yoke, a bevel gear on said shaft, an idle gear carried by one of said yokes meshing with the first gear, a driving shaft journaled in the other yoke, a bevel gear on the driving shaft meshing with the idle gear, a segment gear on the yoke which carries the driven shaft, an intermediate tube attached to the other yoke, an outer tube, a gear on. the outer tube meshing with the segment gear, and means for detachably locking both tubes together.

5. Two yokes pivoted together, a driven shaft in one yoke, a bevel gear on said shaft, an idle gear carried by one of said yokes meshing with the first gear, a driving shaft journaled in the other yoke, -'a bevel gear on the driving shaft meshing with the idle gear, a segment gear on the yoke which carries the driven shaft, an intermediate tube attached to the other yoke, an outer tube, a gear on the outer tube meshing with the se ent gear, a wheel on the intermediate tu e, a wheel on the outer tube, a series of spring pressed slidable bolts in the latter wheel, the intermediate tube having holes adapted to be engaged by said bolts, handles on the bolts, and means for holding said handles at various distances from the axis 6. Two yokes pivoted together, a driven of their wheel.

shaft in one yoke, a bevel gear on said shaft, an idle gear carried by one of said yokes meshing with the first gear, a driving shaft journaled in the other yoke, a bevel ear on the driving shaft meshing with the id e gear, a segment gear on the yo e which carries the driven shaft, an intermediate tube attached to the other yoke, an outer tube, a gear on the outer tube meshing with the segment gear, a wheel on the intermediate tube, a' wheel on the outer tube, a series of spring pressed slidable bolts in the latter wheel, the intermediate tube having holes adapted to be engaged by said bolts, and handles 0 I1 tl1e bolts, each handle having two diametrrcal grooves on its inner end, one groove being deeper than the other, said grooves detachably engaging the rim of the wheel.

In testimony whereof, I have hereunto set .9th day of March 1909; on the driving shaft meshing with the idle gear, a segment gear on the yoke which carries the driven shaft, an intermediate tube WILLIAM A. HALL. 

